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    In recent years, great changes have taken place in the city of Hangzhou. As we can see, many streets and roads . A. had been built and rebuilt B. has been built and rebuilt C. have been built and rebuilt D. are being built and rebuilt 【查看更多】

     

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    In recent years, great changes have taken place in the city of Hangzhou. As we can see, many streets and roads_______.

    A. had been built and rebuilt　　　 B. has been built and rebuilt

    C. have been built and rebuilt　　 D. are being built and rebuilt

     

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    In recent years, great changes have taken place in the city of Hangzhou．As we can see, many streets and roads ________．

    [　　]

    A．had been built and rebuilt

    B．has been built and rebuilt

    C．have been built and rebuilt

    D．are being built and rebuilt

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